diff --git a/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java b/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java
index c2fb8b92..6c2126c6 100644
--- a/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java
+++ b/graphics/src/main/java/de/staropensource/sosengine/graphics/GraphicsSubsystem.java
@@ -96,7 +96,6 @@ public final class GraphicsSubsystem implements SubsystemMainClass {
      * @see ApiMainClass
      * @since 1-alpha0
      */
-    @Nullable
     @Getter
     private ApiMainClass api = null;